Big Block Headers in a 4x4 Blazer

[BIG BLOCK JIMMY]

Header nightmare is now over!! I had to slightly modify the after market crossmember frame bracket and I also trimmed about 1/4" off the top frame. I believe that if you have an OEM crossmember/mounts, these headers will bolt right up! Very stout and top of the line headers with 2" tubes, 14 gauge and 3/8" flange ground smooth.
As I stated/shown previously, they have plenty of room between the leaf spring shackles.
I hope this helps someone.